Dr88
Newbie
About 99% done installing a new harness in a 1990 Suburban, and came across this small grey box with a circuit inside. It has the letters FEDCBA where 6 wires come out, which seems to be the same as the ALDL connector. 2 of the wires (Tan/BLK, and BLU/WHT)seem to go to the ECM, but the other wires Tan,Tan,PPL,BLU don’t look like they connect anywhere.
I have searched every page in the electrical diagrams, and can’t seem to find this module anywhere, please help me ID this.
I have searched every page in the electrical diagrams, and can’t seem to find this module anywhere, please help me ID this.
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